The quake happened around 2:10 a.m., according to the U.S. Geological Survey, and it was about 6 miles deep.
Residents felt the earthquake in the city, as well as Redlands, San Bernardino, Murrieta, Nuevo, Moreno Valley, East Highland, Menifee, Mentone, Calimesa and Riverside.
There were no reports of damage or injuries.